kernel/git/next/linux-next.git/lib/fonts, branch master

Merge tag 'drm-misc-next-2026-06-19' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

2026-07-06T07:38:49+00:00

drm-misc-next for 7.3: UAPI Changes: - connector: Add color format property Cross-subsystem Changes: - dmem: introduce a peak file Core Changes: - atomic: Add create_state callback and helpers to all objects, add documentation on atomic commit lifetime - buddy: Fix use-after-free, add per-order free and used block scoreboards - gem: Remove DRIVER_GEM_GPUVA feature flag - hdmi: Hook the color format property in the helpers - mipi-dsi: Add MIPI_DSI_MODE_DSC_ALL_SLICES_IN_PKT flag - sched: Add test suite for concurrent job submissions - virtio: Add support for saving and restoring virtio_gpu_objects, abort virtqueue wait on device removal to avoid hung task Driver Changes: - amdgpu: Implement "color format" DRM property - amdxdna: Disable device buffer exporting - ethosu: Add performance counter support - msm: Support DSC configurations with slice_per_pkt > 1 - mxsfb: Fix disable sequence - panthor: Support sparse mappings - rockchip: Support YUV background color, Fix layer config timeout, add edp support for rk3576, cleanups and formats improvements - solomon: Add a batch command submission function - tegra: Add DSI support for Tegra 20 and 30, fix dsi driver when the firmware hasn't enabled the controller, - v3d: Reduce PM runtime autosuspend delay, Scheduler and submission fixes and refactoring, Deprecate V3D 3.3 and 4.1 support - bridge: - display-connector: don't autoenable HPD IRQ, trigger initial HPD event for DP - dw-dp: Null pointer dereference and use-after-free fixes - ti-sn65dsi83: Remove NO_HFP and NO_HBP mode flags - panel: - himax-hx83121a: add backlight regulator support - novatek-nt36672a: Inline panel init sequences - panel-edp: Add quirks for AUO B116XAT04.3, CMN N116BCP-EA2, CSW MNB601LS1-8, BOE NV116WH2-M30, BOE NT116WHM-N21, BOE NV116FH1-M31, BOE NV116FH1-M30, NV140FHM-N5B, TM156VDXP25 - New panels: Samsung ATNA40HQ08-0, Anbernic TD4310, Chipone ICNA35XX, Ilitek ILI9488 Signed-off-by: Dave Airlie From: Maxime Ripard Link: https://patch.msgid.link/20260619-burgundy-termite-of-whirlwind-f7a4dd@houat

fbdev/arm: Export acorndata_8x8 font symbol for bootloader

2026-06-09T14:00:11+00:00

The text display code used in the Risc PC kernel image decompression code uses arch/arm/boot/compressed/font.c, which includes lib/fonts/font_acorn_8x8.c, which further includes . Since commit 97df8960240a ("lib/fonts: Provide helpers for calculating glyph pitch and size") contains inline functions that require __do_div64, which is not linked into the ARM kernel decompressor. This makes Risc PC zImages fail to build. Resolve this issue by defining the BOOTLOADER symbol and use it to avoid a static declaration of the acorndata_8x8 symbol. That way it can be referenced by the arm bootloader, and other static math functions and symbols (like __do_div64) stay static and don't get unneccesary included in the ARM kernel bootloader decompressor object file. Fixes: 97df8960240a ("lib/fonts: Provide helpers for calculating glyph pitch and size") Reported-by: Ethan Nelson-Moore Reviewed-by: Thomas Zimmermann Cc: linux-arm-kernel@lists.infradead.org Cc: Russell King Signed-off-by: Helge Deller

lib/fonts: Look up glyph data with font_data_glyph_buf()

2026-06-04T07:44:09+00:00

Add font_data_glyph_buf() to retrieve a character's glyph data or NULL otherwise. Console fonts can currently contain 256 or 512 glyphs. The kernel-internal characters are of type char, unsigned short or unsigned int. Catch all of them by accepting unsigned int. Callers possibly have to cast from signed to unsigned types to reach all glyphs in a font. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Link: https://patch.msgid.link/20260529140759.529929-2-tzimmermann@suse.de

lib/fonts: Fix bit position when rotating by 180 degrees

2026-04-28T12:18:51+00:00

Fix the horizontal bit position when rotating a glyph by 180°. The original code in rotate_ud() rounded the value in width up to a multiple of 8, aka the bit pitch, and calculated the rotated pixel from that value. The new code stores the glyph's pitch in bit_pitch, but fails to update the rotated pixel's output accordingly. Simply replacing the variable does this. The bug can be reproduced by setting a font with an unaligned width, such as sun12x22, like this: setfont sun12x22 echo 2 > /sys/class/graphics/fbcon/rotate Without the fix, the font looks distorted. Fixes: a30e9e6b018f ("lib/fonts: Refactor glyph-rotation helpers") Closes: https://lore.gitlab.freedesktop.org/drm-ai-reviews/review-patch7-20260407092555.58816-8-tzimmermann@suse.de/ Cc: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org Signed-off-by: Thomas Zimmermann Signed-off-by: Helge Deller

lib/fonts: Implement font rotation

2026-04-07T15:38:07+00:00

Move the core of fbcon's font-rotation code to the font library as the new helper font_data_rotate(). The code can rotate in steps of 90°. For completeness, it also copies the glyph data for multiples of 360°. Bring back the memset optimization. A memset to 0 again clears the whole glyph output buffer. Then use the internal rotation helpers on the cleared output. Fbcon's original implementation worked like this, but lost it during refactoring. Replace fbcon's font-rotation code with the new implementations. All that's left to do for fbcon is to maintain its internal fbcon state. v2: - fix typos Signed-off-by: Thomas Zimmermann Signed-off-by: Helge Deller

lib/fonts: Refactor glyph-rotation helpers

2026-04-07T15:38:07+00:00

Change the signatures of the glyph-rotation helpers to match their public interfaces. Drop the inline qualifier. Rename several variables to better match their meaning. Especially rename variables to bit_pitch (or a variant thereof) if they store a pitch value in bits per scanline. The original code is fairly confusing about this. Move the calculation of the bit pitch into the new helper font_glyph_bit_pitch(). Signed-off-by: Thomas Zimmermann Signed-off-by: Helge Deller

lib/fonts: Refactor glyph-pattern helpers

2026-04-07T15:38:07+00:00

Change the signatures of the pattern helpers to align them with other font-glyph helpers: use the font_glyph_ prefix and pass the glyph buffer first. Calculating the position of the involved bit is somewhat obfuscated in the original implementation. Move it into the new helper __font_glyph_pos() and use the result as array index and bit position. Note that these bit helpers use a bit pitch, while other code uses a byte pitch. This is intentional and required here. v2: - fix typos in commit message Signed-off-by: Thomas Zimmermann Signed-off-by: Helge Deller

lib/fonts: Implement glyph rotation

2026-04-07T15:38:07+00:00

Move the glyph rotation helpers from fbcon to the font library. Wrap them behind clean interfaces. Also clear the output memory to zero. Previously, the implementation relied on the caller to do that. Go through the fbcon code and callers of the glyph-rotation helpers. In addition to the font rotation, there's also the cursor code, which uses the rotation helpers. The font-rotation relied on a single memset to zero for the whole font. This is now multiple memsets on each glyph. This will be sorted out when the font library also implements font rotation. Building glyph rotation in the font library still depends on CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y. If we get more users of the code, we can still add a dedicated Kconfig symbol to the font library. No changes have been made to the actual implementation of the rotate_*() and pattern_*() functions. These will be refactored as separate changes. v2: - fix typos Signed-off-by: Thomas Zimmermann Signed-off-by: Helge Deller

lib/fonts: Clean up Makefile

2026-04-07T15:38:07+00:00

Simplify the Makefile. Drop font-obj-y and sort the fonts by dictionary order. Done in preparation for supporting optional font rotation. v2: - sort Makefile font entries by Family/Size in ascending order (Geert, Jiri) Signed-off-by: Thomas Zimmermann Signed-off-by: Helge Deller

lib/fonts: Provide helpers for calculating glyph pitch and size

2026-04-07T15:38:07+00:00

Implement pitch and size calculation for a single font glyph in the new helpers font_glyph_pitch() and font_glyph_size(). Replace the instances where the calculations are open-coded. Note that in the case of fbcon console rotation, the parameters for a glyph's width and height might be reversed. This is intentional. v2: - fix typos in commit message Signed-off-by: Thomas Zimmermann Signed-off-by: Helge Deller